Plaster composition.



3 I O6. COMPOSITIONS,

, COATINGOR PLASTIC CW Ref'r'rIOO' UNITED STATES PATENT OFFICE.

JAMES M. SNELUS, OF NHJES, OHIO.

PLASTER COMPOSITION.

To all whom it may concern:

Be it known that I, JAMES M. SNELUs, of Niles, in the county of Trumbull and State of Ohio, have invented certain new and useful Im rovements in Plaster Compositions; and I 0 hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

' In plaster compositions heretofore used difficulty has been experienced by reason of the fact that the outer or white coating is caused to dry too quickly, resulting in cracking. This is due to the rapid absorption of moisture by the plaster compound.

The primary object of my invention is to provide a plaster composition which will not take ofi the moisture of the outer coating.

Other objects are to provide a plaster composition which will possess eat pliability, allowing of settlin of the wa 1 without causing breaks, and W 'Oh will resent a surface to which the top coating wi l readily adhere.

The invention'will be hereinafter fully set.

forth, and particularly pointed out in the claims. I

My composition consists, of the following ingredients in approximately the proportions specified: cement twenty pounds; aster-ofaris, four pounds; shavin s, two poun3s,s1xo'u'nces; 1 -hair omnce; manila fiber, one-liafi ounce; soap, oneourt ounce; 221}, one ounce; manure, one-sixteenth ounce. The parts are by weight and not by bu1k.. I

Specification of Letters Patent.

Application filed Aprill7, 1906. Serial No. 812.246.

' Patented Jan. 15,1907.

In preparing my laster composition the shavings are treated with salt water as socurity against burning and then mixed with the other ingredients while wet, all being treated with salt-water. The shavin s render the plaster exceedingly light. I have found by actual pactice that a composition of the ingredients specified will not absorb the moisture of the outer coating, but will permit the latter to dry without interference.

This composition is also designed to b used in the making of laster-boards, which are secured in position by nails or wires.

Aside from the other advantages above mentioned, a plaster-board made in accordance with my invention may be produced for about one-half the cost of those now in use.

I claim as my invention- 1. The herein-described composition of matter comprising cement, plaster-of-paris, shavings, pig-hair, fiber, soap, salt and cowmanure. I

- 2. The herein-described composition of matter comprising cement, plaster-of-paris, shavings, manure, al mixed in salt water.

In testimony whereof I have. signed this specification in the presence of two subscribing witnesses.

JAMES M. SNELUS.

Witnesses:

FRANCIS S. MAGUIRE, VERNON E. WEST.

Examiwlg-hair, fiber, soap and cow-- 

